This is important for 49ers fans because I get the distinct impression that the 49ers want bigger bodies at running back. Bigger running backs are able to do the things the 49ers like to see, such as picking up blitzes and running between the tackles.

The 49ers have two running backs who are not the biggest guys in the world. However, both Frank Gore (5-foot-9, 217 pounds) and Glen Coffee (6-0, 209) play big. While it seems C.J. Spiller of Clemson would give the 49ers a much-needed element of speed and intrigue, is it possible that the 49ers consider a bigger runner as a change-of-pace option?

Here are the heights and weights of some of the notable running backs, according to Jeremiah (the last number in the height is in eighths of an inch):